When plans for a Unmanned Aerial Vehicle are stolen, NCIS looks into it on NCIS: Los Angeles Season 5 Episode 22.

Sam believes that the case could be tied to the disappearance of the program engineer's daughter who he protected when he worked in Saudia Arabia. 

The investigation gets explosive! Watch NCIS: Los Angeles online now.

Watch NCIS: Los Angeles Season 5 Episode 22 Online

Carla Day is a staff writer for TV Fanatic. Follow her on Twitter and on Google+.